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 These packages contain reference information about the main GWT user interface and utility classes.  
 For higher-level explanations of how to take advantage of all this stuff, check out the {@link com.google.gwt.doc.DeveloperGuide Developer Guide}.
 Among other things, there's a handy {@link com.google.gwt.doc.DeveloperGuide.UserInterface.WidgetGallery widget gallery} and an explanation of how {@link com.google.gwt.doc.DeveloperGuide.RemoteProcedureCalls remote procedure calls} work.
 
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 For a list of JRE classes that GWT can translate out of the box, see the <a href="jre.html">documentation for the GWT JRE emulation library</a>. 
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 @id gwt
 @title  GWT Class Reference
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